The organs of the respiratory system extend from the nose to the lungs and are divided into the upper and lower respiratory tracts.

An appeal must be made in writing if:

a billing error was made by the medical office assistant. the carrier requested information from the patient that was not received. the patient had a routine service covered by the policy. the claim was for services related to an accident.

What method of entry of a toxin results in rapid absorption of the agent through the alveolar-capillary membrane?

A) Inhalation B) Injection C) Absorption D) Ingestion